FIELD: medicine, pharmaceutics.SUBSTANCE: invention relates to novel cyclic compounds of general formula which possess properties of CaSR modulator. In general formula I group represents cycloalkyl, which contains 4-7 carbon atoms, optionally substituted with one or several similar or different substituents, selected from R2, R3, R4 or R5； A represents 1-naphthyl； R1 represents methyl, ethyl or n-propyl, each of which is optionally substituted with one or several, similar or different substituents, selected from halogen and hydroxy； R2 and R3 represent hydrogen； R4 represents hydrogen, halogen, hydroxy or C1-6alkyl； each R5 represents independently one or several similar or different substituents, represented by hydrogen or C1-6alkyl； G represents -C(O)NH2, C3-8cycloalkyl, C1-6heterocycloalkyl, C1-6heterocycloalkenyl, C3-8cycloalkenyl, C6-14aryl, C1-10heteroaryl, C6-10arylamino, hydroxyaminocarbonyl, C6-10arylaminocarbonyl, C1-4aminocarbonyl, C1-6heterocycloalkylcarbonyl, C1-10heteroarylaminocarbonyl, C6-10arylsulfonylaminocarbonyl, C6-14aryloxy, or C1-4alkoxycarbonyl, where said substituents are optionally additionally substituted with one or several, similar or different substituents. Other values of radicals are given in the formula of invention.EFFECT: compounds can be applied in treatment, relief or prevention of physiological disorders or diseases, associated with impairment of activity of CaSR, such as hyperparathyreosis, and other diseases.23 cl, 9 dwg, 3 tbl, 315 exИзобретение относится к новым циклическим соединениям общей формулы I, которые обладают свойствами модулятора CaSR. Соединения могут найти применение при лечении, облегчении или профилактике физиологических расстройств или заболеваний, связанных с нарушениями активности CaSR, таких как гиперпаратиреоз, и других заболеваний. В общей формуле Iгруппа представляет циклоалкил, содержащий 4-7 атомов углерода, необязательно замещенный одним или несколькими, одинаковыми или разными заместителями, вы
